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Definition
| Crossing the male of one homozygous phenotype with the female of a different homozygous phenotype and visa versa. |
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Definition
| The breeding of two purebred lines; the beginning of a genetic experiment. |
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Definition
| An inherited factor that determines a characteristic. |
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Definition
| Different versions of the same gene, ie round vs wrinkled seeds. |
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Definition
| A specific place on a chromosome where all alleles for a specific gene are found; loci = plural. |
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Definition
| Set of alleles an individual organism possesses. |
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Definition
| Possessing two identical alleles. |
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Definition
| Possessing two different alleles. |
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Definition
| Between parents that differ in a single characteristic. |
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Term
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Definition
| The first generation of a cross. |
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Definition
| The offspring from the parent generation. |
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Definition
| Traits that appeared unchanged in the F1 heterozygous offspring. |
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Definition
| Traits that disappeared in the F1 heterozygous offspring. |
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Term
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Definition
| States that each individual diploid organism possess two alleles for any particular characterisitic; these two alleles segregate (separate) when gametes are formed and one allele goes into each gamete. |
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Term
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Definition
| When two different alleles are present in a genotype, only the trait encoded by one of them - the "dominant" allele - is observed in the phenotype. |
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Term
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Definition
| A cross between an F1 generationand either of the parental genotype. |
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Term
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Definition
| One individual of unknown genotype is crossed with another individual with a homozygous recessive genotype for the trait in question; reveals the genotype of the first individual by revealing any recessive allele if present. |
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Term
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Definition
| When the heterozygote has a phenotype intermediate between the phenotypes of the two homozygotes; the genotypic ratios and phenotypic ratios of the offspring are the same. |
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Term
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Definition
| The common allele for a character as it is the allele usually found in the wild. |
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Term
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Definition
| Crossing two individuals that differ in two characteristics. |
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Term
| Principle of Independent Assortment |
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Definition
| Alleles at different loci separate independently of one another. |
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